Fastening device for pneumatic-tire joints.



No. 728,002. 7 PATENTEDMAY 12, 1903;

E. PERGEVAL. I FASTENING DEVICE FOR PNBUMATIG'TIRE JOINTS.

APPLICATION FILED JULY 26, 1901.

N0 MODEL.

WIN/E3853. INVENTOR Zfienaeuwl ATTORNEY mm) STATES Patented May 12',1903.-

I ATENT Grrrcn.

EGHLIN PERGEVAL, OF VANCOUVER, CANADA.

SPECIFICATION forming part of Letters Patent No. 728,002, dated May 12,1903.

Application filed July 26,1901. Serial Nol69.864. (No model.)

To aZZwhom it may conccrm Be it known that I, EOHLIN PERCEVAL, residingat Vancouver, in the Province of British Columbia and Dominion ofCanada, have invented new and useful Improvements in FasteningDevicesfor Pneumatic-Tire Joints, of which the following is a specification.

My invention relates to means for fastening together the joints of theouter tube of a double-tube tire, and it primarily seeks to provide asimple, cheap, and easily-operated ence being had to the accompanyingdraw ings, in which- Figure 1 is a perspective viewof a portion of abicycle-tire with my invention applied thereto. Fig. 2 is across-section thereof. Fig. 3 is a similar view showing the tire openfor the withdrawal of the inner tube. Fig. 4. is a detail view showingthe manner of initially applying the fastener to the tire, and

Fig. 5 is a detail perspective view of the fastener detached.

Referring to the drawings, in which like numerals indicate like parts inall figures, 1 designates the rim of the bicycle, upon which is mountedthe rubber tire 2, of the usual double-tube type, having an outer tube2, open, as at 2", and an inner tube 3, as will be clearly understood byreference to Figs. 1, 2, and 3 of the drawings. The outer tube 2 is ofgreater thickness than the inner tube 3, as shown, and is provided withthe usual lacing-aperturestand 4. (See Figs. 1, 2, and 3.)

The fastener device consists, essentially, of a flat strip 5, preferablyformed of a non-corrosive metal or alloy. This strip 5 has upturnedportions 5 5 atthe ends of-which are formed the fiat button-shapedmember 6 and the ball-shaped member 7 for a purpose which will presentlyappear. The member 6 is formed integrally with the upturned portion 5 ofthe member 5, which upturned portion 5 is of a slightly less length thanthe thickness of the tire, whereby the device when applied to a tire, asshown in Figs. 1, 2, and 3, will lie with its fiat portion 5 in closecontact with the under side of the tire, as shown at 5 in Fig. 2. Theupturned portion 5 is of a less length than the portion 5, whereby whenthe ball member 7 is inserted in the aperture 4? it will not projectentirely within the tire, but remain embedded in the rubber.

By reason of the short upturned portion 5 of the member 5 and thepeculiar shape of the ball member 7 the elastic force of the tiresurrounding the ball 7 will tend to force the same into the interior ofthe tire, and thereby hold the strip 5 of the fastening member tightlyagainst the tire, it being understood that the diameter of the ball andthebuttonshaped members 5 and 5 are greater than the diameters of theapertures 4 and-4 The button-shaped member 6, is larger in diameter thanthe ball member 7 to prevent its passage through the aperture 4, as willbe clearly seen by reference to the drawings. Furthermore, thebutton-shaped member is flattened, as at 6, so as'to lie snugly againstthe inside of the tire and not project far into the tire, while theupper portion is slightly curved, as at 6*.

By arranging the button and ball members as shown and described it willbe readily seen they offer little or no obstruction to the inner tube ofthe tire, and by reason of the member 5 being made thin, fiat, andcurved to fit the tire, as shown, no special form of rim is necessaryfor the tire equipped with myfastener.

In Fig. 4 Lhave shown the manner of applying my improved fastener to atire, from which it will be seen the .ball end of the fastener is firstinserted from the inside of the tire into the aperture 4. The portion 5is then pulled through until the button member comes in contact with thetire. .The tire is then ready to be applied to the rim of the wheel.

From the foregoing, taken in connection with the accompanyingdrawings,it is thought the advantages and operation of my fasteningmeans will be readily understood.

I am aware thatfastening devices of asimi- ICO lar nature haveheretofore been employed to fasten together the outer tubes of pneumatictires; but so far as I am aware the tires employing such devices were ofspecial construction and required a special form or shape of apertureinto which the devices were adapted to fasten.

I do not, therefore, claim, broadly, a fastener device of this type; but

What I do claim, and desire to secure by Letters Patent, is-

1. A fastener of the class described; comprising a flat shank memberhaving upturned portions, a flattened button at one end and Witnesses:

W. H. JOHNSON, CHAS. S. ARNOLD.

